Radiation effects in near-field microwave diagnostics

被引：6
|
作者：
Reznik, A. N.
Shereshevskii, I. A.
Vdovicheva, N. K.
机构：
来源：
JOURNAL OF COMMUNICATIONS TECHNOLOGY AND ELECTRONICS | 2008年 / 53卷 / 06期
基金：
俄罗斯基础研究基金会;
关键词：
D O I：
10.1134/S1064226908060028
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Radiation effects in the near-field diagnostics of weakly absorbing dielectrics are studied theoretically and experimentally. Calculations are performed on the basis of the developed theory of the near-field radar of a plane-layered medium, which is used for calculation of the complex impedance of a probe situated above the interface of a homogeneous medium and an inhomogeneous medium. It is found that the height dependence of the active part of impedance is characterized by "wave" spatial scale h(w), whereas the reactive part has quasistatic scale h(qs), where h(qs) << h(w). It is revealed that the response of a near-field radar contains a parameter sensitive to the radiation fields of the probe. It is shown that recording of this parameter can substantially extend the sensing volume of near-field radar.
引用
收藏
页码：622 / 630
页数：9
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